In the new study, the researchers collected samples containing virus from 26 dairy farms in eight states. Cows are not typically susceptible to this type of influenza, but H5N1 appears to have acquired mutations in late 2023 that allowed it to jump from wild birds to cattle in the Texas Panhandle, the researchers said.

Particles of bird flu virus have come up in milk, sour cream and cheese samples. Baby formula has tested negative. See what products are safe.

Dairy cattle infected by avian influenza in recent months have surprisingly large amounts of the virus in their milk but little in other bodily fluids, according to tests by the Iowa State University Veterinary Diagnostic Laboratory.

A USDA analysis shows the spread in cattle started from a single spillover event from birds in the Texas panhandle that may have happened in early December.

For the first time, a case of avian flu is hitting dairy cattle in nine states. It could be even broader, said an Arizona scientist tracking the virus.

Doctors in Texas are describing the only known human case of H5N1 avian flu connected to the ongoing outbreak of the disease in dairy cows. Bird flu in humans remains extremely rare, but in the hundreds of cases documented worldwide over the past few years,

The CDC urged dairy workers to wear protective equipment when working near cows after a farm worker in Texas developed a serious eye infection while infected with bird flu.

Consuming unpasteurized dairy is a trend some people are promoting online. It's dangerous, but it could be an even worse idea with the bird flu spread.

Bird flu, or avian influenza, can be deadly in birds but normally doesn’t infect people. While some strains have caused serious disease and even death in humans, most cause relatively mild symptoms. In the U.

A farmer has received a fine after he admitted failing to comply with measures to stop the spread of bird flu. Cheltenham Magistrates' Court was told Nigel Jackson of North Park Farm, Cowley, did not put his chickens in isolation when restrictions were in place during late 2022 and early 2023.